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A design of a long-wavelength thermal imaging system with a large focal length, a fairly large field of view, and the ability to operate in a wide temperature range is built. The analysis results of the image quality criteria on ZEMAX software show that the optical system meets the requirements.

本研究构建了一款长波长热成像系统的设计方案，该系统具备大焦距、较宽视场以及可在宽温度区间内正常工作的特性。基于ZEMAX光学软件的像质评价准则分析结果表明，该光学系统满足设计要求。